Involving Hybrid Transform And Difference Coding Patents (Class 348/400.1)
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Patent number: 11640681Abstract: A method is disclosed including: receiving raw image data corresponding to a series of raw images; processing the raw image data with an encoder to generate encoded data, where the encoder is characterized by an input/output transformation that substantially mimics the input/output transformation of one or more retinal cells of a vertebrate retina; and applying a first machine vision algorithm to data generated based at least in part on the encoded data.Type: GrantFiled: September 3, 2020Date of Patent: May 2, 2023Assignee: CORNELL UNIVERSITYInventors: Sheila Nirenberg, Iliya Bomash
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Patent number: 11451827Abstract: Techniques for selectively transforming one or more coding units when coding video content are described herein. The techniques may include determining whether or not to transform a particular coding unit. The determination may be based on a difference in pixel values of the particular coding unit and/or one or more predefined rate-distortion constraints. When it is determined to not perform a transform, the particular coding unit may be coded without transforming the particular coding unit.Type: GrantFiled: April 14, 2021Date of Patent: September 20, 2022Assignee: Microsoft Technology Licensing, LLCInventors: Jizheng Xu, Cuiling Lan
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Patent number: 11405622Abstract: Techniques are disclosed relating to data compression. In some embodiments, compression circuitry determines, at least partially in parallel for multiple different lossless compression techniques, a number of bits needed to represent a least compressible pixel, using that technique, in a set of pixels being compressed. The compression techniques may include neighbor, origin, and gradient techniques, for example. The compression circuitry may select one of the compression techniques based on the determined numbers of bits for the multiple compression techniques and corresponding header sizes. In some embodiments, the compression circuitry determines, for multiple regions of pixels in the set of pixels, for ones of the compression techniques, a region number of bits needed to represent a least compressible pixel, using that technique. The selection of a compression technique may be further based on region numbers of bits.Type: GrantFiled: April 22, 2020Date of Patent: August 2, 2022Assignee: Apple Inc.Inventors: Tyson J. Bergland, Anthony P. DeLaurier, Karthik Ramani, Stephan Lachowsky
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Patent number: 11328398Abstract: In one aspect, in one aspect, a computerized method useful for reducing block boundary artifacts in a digital image processing that includes the step of obtaining an original digital image to scrambled. The method includes the step of generating a uniform grid of boxes in the digital image. At a boundary of each box in the uniform grid of boxes, a frame for each box is generated by replicating each of a set of boundary pixels a specified number of times to generate a thicker boundary. The method incudes the step of scrambling the uniform grid of boxes of the digital image.Type: GrantFiled: January 30, 2020Date of Patent: May 10, 2022Inventor: Luigi Caramico
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Patent number: 11006149Abstract: Techniques for selectively transforming one or more coding units when coding video content are described herein. The techniques may include determining whether or not to transform a particular coding unit. The determination may be based on a difference in pixel values of the particular coding unit and/or one or more predefined rate-distortion constraints. When it is determined to not perform a transform, the particular coding unit may be coded without transforming the particular coding unit.Type: GrantFiled: March 17, 2020Date of Patent: May 11, 2021Assignee: Microsoft Technology Licensing, LLCInventors: Jizheng Xu, Cuiling Lan
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Patent number: 10769483Abstract: A method is disclosed including: receiving raw image data corresponding to a series of raw images; processing the raw image data with an encoder to generate encoded data, where the encoder is characterized by an input/output transformation that substantially mimics the input/output transformation of one or more retinal cells of a vertebrate retina; and applying a first machine vision algorithm to data generated based at least in part on the encoded data.Type: GrantFiled: May 23, 2019Date of Patent: September 8, 2020Assignee: CORNELL UNIVERSITYInventors: Shelia Nirenberg, Illya Bomash
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Patent number: 10679326Abstract: An image data processing apparatus includes: an image data acquisition unit for acquiring low resolution image data and high resolution image data; and a confidence data determination unit for determining confidence data which indicates a level of confidence in a pixel value in the high resolution image data. The determination unit determines the level of confidence of a target pixel in the high resolution image data based on a comparison between a first and a second evaluation value. The first evaluation value is determined based on pixel values of neighboring pixels in a pixel position in the low resolution image data corresponding to a pixel position of the target pixel in the high resolution image data. The second evaluation value is determined based on the pixel values of the neighboring pixels, using a method that is different from the first evaluation value.Type: GrantFiled: November 18, 2016Date of Patent: June 9, 2020Assignee: Canon Kabushiki KaishaInventor: Shin Tanaka
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Patent number: 10623776Abstract: Techniques for selectively transforming one or more coding units when coding video content are described herein. The techniques may include determining whether or not to transform a particular coding unit. The determination may be based on a difference in pixel values of the particular coding unit and/or one or more predefined rate-distortion constraints. When it is determined to not perform a transform, the particular coding unit may be coded without transforming the particular coding unit.Type: GrantFiled: April 9, 2019Date of Patent: April 14, 2020Assignee: Microsoft Technology Licensing, LLCInventors: Jizheng Xu, Cuiling Lan
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Patent number: 10572977Abstract: An image processing apparatus a processor that acquires reading image data, composed of a plurality of pixel signals, and executes stochastic resonance processing, in which each of the plurality of pixel signals is added to noise and is subjected to a binary processing, and a plurality of results, obtained by performing the noise addition and the binary processing on the plurality of pixel signals in parallel, are synthesized. With regard to a pixel signal as a processing target among the plurality of pixel signals, at least one of a strength of the noise and a threshold value used for the binary processing is set based on a pixel signal of the input image data corresponding to the pixel signal. In addition, the processor outputs the result of the stochastic resonance processing.Type: GrantFiled: March 27, 2017Date of Patent: February 25, 2020Assignee: Canon Kabushiki KaishaInventors: Tomokazu Ishikawa, Wakako Tanaka, Tetsuya Suwa, Shinjiro Hori
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Patent number: 10561841Abstract: The invention provides a retinal prosthetic method and device that mimics the responses of the retina to a broad range of stimuli, including natural stimuli. Ganglion cell firing patterns are generated in response to a stimulus using a set of encoders, interfaces, and transducers, where each transducer targets a single cell or a small number of cells. The conversion occurs on the same time scale as that carried out by the normal retina. In addition, aspects of the invention may be used with robotic or other mechanical devices, where processing of visual information is required. The encoders may be adjusted over time with aging or the progression of a disease.Type: GrantFiled: August 6, 2018Date of Patent: February 18, 2020Assignee: CORNELL UNIVERSITYInventor: Sheila Nirenberg
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Patent number: 10482779Abstract: The present disclosure relates generally to altering the cognitive load in an individual to affect the information and task processing of that individual. Specifically introducing movement in the peripheral visual field of the individual reduces the cognitive load, thereby allowing the user to be more efficient at the primary task or information processing. Included is a system comprising a support that is shaped to be positioned in front of a user and in the field of vision of the user. A central display screen is attached to the support and positioned proximate the central vision of the user. A computer readable memory medium is accessible by a processor and to instruct the central display screen to display both repetitive, non-biological movement and either information or an operating task on the central display screen.Type: GrantFiled: January 18, 2017Date of Patent: November 19, 2019Inventor: Andy Bevilacqua
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Patent number: 10303970Abstract: A method is disclosed including: receiving raw image data corresponding to a series of raw images; processing the raw image data with an encoder to generate encoded data, where the encoder is characterized by an input/output transformation that substantially mimics the input/output transformation of one or more retinal cells of a vertebrate retina; and applying a first machine vision algorithm to data generated based at least in part on the encoded data.Type: GrantFiled: January 17, 2017Date of Patent: May 28, 2019Assignee: CORNELL UNIVERSITYInventors: Sheila Nirenberg, Illya Bomash
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Patent number: 10298955Abstract: Techniques for selectively transforming one or more coding units when coding video content are described herein. The techniques may include determining whether or not to transform a particular coding unit. The determination may be based on a difference in pixel values of the particular coding unit and/or one or more predefined rate-distortion constraints. When it is determined to not perform a transform, the particular coding unit may be coded without transforming the particular coding unit.Type: GrantFiled: December 12, 2017Date of Patent: May 21, 2019Assignee: Microsoft Technology Licensing, LLCInventors: Jizheng Xu, Cuiling Lan
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Patent number: 10242584Abstract: The present disclosure relates generally to altering the cognitive load in an individual to affect the information and task processing of that individual. Specifically introducing movement in the peripheral visual field of the individual reduces the cognitive load, thereby allowing the user to be more efficient at the primary task or information processing. Included is a system comprising a support that is shaped to be positioned in front of a user and in the field of vision of the user. A first display screen is attached to the support and positioned in the right eye peripheral vision, while a second display screen is attached to the support and positioned in the left eye peripheral vision. A computer readable memory medium is accessible by a processor and to instruct the first display screen and the second display screen to display a repetitive, non-biological movement on the screens.Type: GrantFiled: April 11, 2016Date of Patent: March 26, 2019Inventor: Andy Bevilacqua
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Patent number: 10229960Abstract: A display includes a frontplane having multiple pixels in a first pixel region and multiple pixels in a second pixel region. At least one display characteristic in the first pixel region is different from at least one display characteristic in the second pixel region. The at least one characteristic is selected from the group consisting of resolution, cavity mode, outcoupling, color and color filter. A display with a curved scan line and variable spaced data line backplane architecture is also described. In addition, a method of reducing power requirements in a display is described.Type: GrantFiled: August 2, 2016Date of Patent: March 12, 2019Assignee: Universal Display CorporationInventors: Michael Hack, Michael S. Weaver, Julia A. Brown
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Patent number: 10039921Abstract: The invention provides a retinal prosthetic method and device that mimics the responses of the retina to a broad range of stimuli, including natural stimuli. Ganglion cell firing patterns are generated in response to a stimulus using a set of encoders, interfaces, and transducers, where each transducer targets a single cell or a small number of cells. The conversion occurs on the same time scale as that carried out by the normal retina. In addition, aspects of the invention may be used with robotic or other mechanical devices, where processing of visual information is required. The encoders may be adjusted over time with aging or the progression of a disease.Type: GrantFiled: December 28, 2015Date of Patent: August 7, 2018Assignee: CORNELL UNIVERSITYInventor: Sheila Nirenberg
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Patent number: 9998750Abstract: Converting video information from a first compression format to a second compression format, including receiving data for a sequence of pictures in the first compression format, the received data including a video stream corresponding to a video program and including for a picture that is inter coded motion vectors and quantized transform coefficients of residuals of motion compensated inter-coded blocks. The converting also includes extracting auxiliary information including one or more auxiliary data elements from the received data; and transcoding from the first compression format to the second compression format, including carrying out motion estimation for blocks of image data in the second compression format. Carrying out motion estimation for blocks of image data in the second format includes using the auxiliary information to ascertain whether to use a first motion estimation method or a second motion estimation method different from the first motion estimation method.Type: GrantFiled: March 15, 2013Date of Patent: June 12, 2018Assignee: Cisco Technology, Inc.Inventor: Arturo A. Rodriguez
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Patent number: 9894353Abstract: A method of encoding video using intra prediction mode dependent quantization matrix includes: calculating an array of quantizers for each size of block unit (100); encoding the arrays of quantizers into header of compressed video stream (102); selecting one scanning order based on a selected intra prediction mode among a plurality of scanning orders (112); scanning the array of quantizers to obtain a block of quantizers based on the selected scanning order (114).Type: GrantFiled: June 12, 2012Date of Patent: February 13, 2018Assignee: SUN PATENT TRUSTInventors: Jin Li, Chong Soon Lim, Viktor Wahadaniah, Sue Mon Thet Naing, Hai Wei Sun, Hisao Sasai, Takahiro Nishi, Youji Shibahara, Toshiyasu Sugio, Kyoko Tanikawa, Toru Matsunobu
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Patent number: 9870629Abstract: In a data visualization system, a method of creating a visual representation of data, the method including the steps of providing instructions to an end user to assist the end user in: constructing multiple graphical representations of data, where each graphical representation is one of a predefined type and includes multiple layers of elements that contribute to the end user's understanding of the data; arranging multiple graphical representations of different types within the visual representation in a manner that enables the end user to understand and focus on the data being represented; and displaying the visual representation.Type: GrantFiled: June 19, 2009Date of Patent: January 16, 2018Assignee: New BIS Safe Luxco S.à r.lInventors: Andrew John Cardno, Peter Stewart Ingham, Bart Andrew Lewin, Ashok Kumar Singh
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Patent number: 9866868Abstract: Techniques for selectively transforming one or more coding units when coding video content are described herein. The techniques may include determining whether or not to transform a particular coding unit. The determination may be based on a difference in pixel values of the particular coding unit and/or one or more predefined rate-distortion constraints. When it is determined to not perform a transform, the particular coding unit may be coded without transforming the particular coding unit.Type: GrantFiled: June 16, 2017Date of Patent: January 9, 2018Assignee: Microsoft Technology Licensing, LLCInventors: Jizheng Xu, Cuiling Lan
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Patent number: 9866867Abstract: Techniques for selectively transforming one or more coding units when coding video content are described herein. The techniques may include determining whether or not to transform a particular coding unit. The determination may be based on a difference in pixel values of the particular coding unit and/or one or more predefined rate-distortion constraints. When it is determined to not perform a transform, the particular coding unit may be coded without transforming the particular coding unit.Type: GrantFiled: April 28, 2017Date of Patent: January 9, 2018Assignee: Microsoft Technology Licensing, LLCInventors: Jizheng Xu, Cuiling Lan
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Patent number: 9723318Abstract: Methods and devices transform image data, which are transformed by a compression filter before being compressed and stored in a reference image memory. In an extension, an inverse transformation to that of the compression filter is performed by a decompression filter when image data from the reference memory are read out and decompressed. The methods and devices can be used for image compression methods and image decompression methods that use reference image memories.Type: GrantFiled: January 12, 2012Date of Patent: August 1, 2017Assignee: SIEMENS AKTIENGESELLSCHAFTInventors: Bernhard Agthe, Peter Amon, Gero Bäse, Andreas Hutter, Robert Kutka, Norbert Oertel
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Patent number: 9648355Abstract: A lossy compression method optimizes bandwidth and storage for a security surveillance network. An appliance on a local network attached to event capture terminals transforms image files into a key frame and at least one subsequent frame. Decompression combines a subsequent frame with its key frame to provide an image with graduated resolution/noise clutter. A camera records, and forwards a plurality of image files compatible with JPEG. Key frames are selected from among the plurality of image files. A configurable low pass filter is reset for each train of a key frame and its subsequent frames. Each low pass filter is selectively applied to each pixel block within a subsequent frame. The transformation operates on coefficients of frequency bins. Meta data enables decompression of a single subsequent frame by reversing some of the transformations to provide a JPEG compatible file having selectively reduced resolution or noise clutter.Type: GrantFiled: September 7, 2014Date of Patent: May 9, 2017Assignee: Eagle Eye Networks, Inc.Inventor: Steven Roskowski
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Patent number: 9549195Abstract: An image encoding device and corresponding decoding device are disclosed for achieving a high rate of compression. The encoding device includes an image conversion module that converts the direction of the images using right-left symmetry mode convention or up-down symmetry mode conversion. Encoding modules are used to encode both the unconverted and converted images. A mode selector module compares the quantity of codes in the encoded unconverted images and the quantity of codes in the encoded converted images, and selects codes that are smaller in the quantity of codes for output.Type: GrantFiled: July 28, 2016Date of Patent: January 17, 2017Assignee: HITACHI MAXELL, LTD.Inventors: Tomokazu Murakami, Yoshinori Suzuki
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Patent number: 9547804Abstract: A method is disclosed including: receiving raw image data corresponding to a series of raw images; processing the raw image data with an encoder to generate encoded data, where the encoder is characterized by an input/output transformation that substantially mimics the input/output transformation of one or more retinal cells of a vertebrate retina; and applying a first machine vision algorithm to data generated based at least in part on the encoded data.Type: GrantFiled: August 24, 2012Date of Patent: January 17, 2017Assignee: Cornell UniversityInventors: Sheila Nirenberg, Illya Bomash
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Patent number: 9503735Abstract: A moving image decoding apparatus and decoding method. The apparatus comprises an entropy decoder, a rectangular region size determiner, and a rectangular region decoder. The rectangular region decoder includes a motion compensator performing motion compensation prediction on a motion compensation region using a motion vector information to obtain a prediction image. Further, there is a transformer performing an inverse quantization and inverse orthogonal transformation process based on the block size indication information.Type: GrantFiled: January 30, 2015Date of Patent: November 22, 2016Assignee: MITSUBISHI ELECTRIC CORPORATIONInventors: Yoshimi Moriya, Shunichi Sekiguchi, Yoshihisa Yamada, Kohtaro Asai
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Patent number: 9471268Abstract: A multi-channel KVM server system for supplying video data to a plurality of clients is disclosed. The KVM server includes a plurality of video processors and a video switch for connecting each video processor to one or more video sources. Each video processor processes video data using a multiresolution decomposition method to generate a plurality of decomposition components at different resolution levels. A main processor of the KVM server transmits the decomposition components generated by various video processors to various clients based on the clients' requirements. When some clients are in a multi-source (“TV wall”) mode and some clients are in a single-source mode, the main processor uses decomposition components generated by some video processors to supply both the clients in single-source mode and as a part of the TV wall data for the clients in multi-source mode.Type: GrantFiled: May 20, 2009Date of Patent: October 18, 2016Assignee: ATEN INTERNATIONAL CO., LTD.Inventor: Wenshun Li
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Patent number: 9432681Abstract: An image encoding device and corresponding decoding device are disclosed for achieving a high rate of compression. The encoding device includes an image conversion module that converts the direction of the images using right-left symmetry mode convention or up-down symmetry mode conversion. Encoding modules are used to encode both the unconverted and converted images. A mode selector module compares the quantity of codes in the encoded unconverted images and the quantity of codes in the encoded converted images, and selects codes that are smaller in the quantity of codes for output.Type: GrantFiled: March 31, 2016Date of Patent: August 30, 2016Assignee: HITACHI MAXELL, LTD.Inventors: Tomokazu Murakami, Yoshinori Suzuki
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Patent number: 9414084Abstract: An image encoding device and corresponding decoding device are disclosed for achieving a high rate of compression. The encoding device includes an image conversion module that converts the direction of the images using right-left symmetry mode convention or up-down symmetry mode conversion. Encoding modules are used to encode both the unconverted and converted images. A mode selector module compares the quantity of codes in the encoded unconverted images and the quantity of codes in the encoded converted images, and selects codes that are smaller in the quantity of codes for output.Type: GrantFiled: April 1, 2016Date of Patent: August 9, 2016Assignee: HITACHI MAXELL, LTD.Inventors: Tomokazu Murakami, Yoshinori Suzuki
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Patent number: 9414083Abstract: An image encoding device and corresponding decoding device are disclosed for achieving a high rate of compression. The encoding device includes an image conversion module that converts the direction of the images using right-left symmetry mode convention or up-down symmetry mode conversion. Encoding modules are used to encode both the unconverted and converted images. A mode selector module compares the quantity of codes in the encoded unconverted images and the quantity of codes in the encoded converted images, and selects codes that are smaller in the quantity of codes for output.Type: GrantFiled: March 31, 2016Date of Patent: August 9, 2016Assignee: HITACHI MAXELL, LTD.Inventors: Tomokazu Murakami, Yoshinori Suzuki
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Patent number: 9414082Abstract: An image encoding device and corresponding decoding device are disclosed for achieving a high rate of compression. The encoding device includes an image conversion module that converts the direction of the images using right-left symmetry mode convention or up-down symmetry mode conversion. Encoding modules are used to encode both the unconverted and converted images. A mode selector module compares the quantity of codes in the encoded unconverted images and the quantity of codes in the encoded converted images, and selects codes that are smaller in the quantity of codes for output.Type: GrantFiled: March 31, 2016Date of Patent: August 9, 2016Assignee: HITACHI MAXELL, LTD.Inventors: Tomokazu Murakami, Yoshinori Suzuki
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Patent number: 9319687Abstract: An image encoding device and corresponding decoding device are disclosed for achieving a high rate of compression. The encoding device includes an image conversion module that converts the direction of the images using right-left symmetry mode convention or up-down symmetry mode conversion. Encoding modules are used to encode both the unconverted and converted images. A mode selector module compares the quantity of codes in the encoded unconverted images and the quantity of codes in the encoded converted images, and selects codes that are smaller in the quantity of codes for output.Type: GrantFiled: July 10, 2015Date of Patent: April 19, 2016Assignee: HITACHI MAXELL, LTD.Inventors: Tomokazu Murakami, Yoshinori Suzuki
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Patent number: 9277226Abstract: An image encoding device and corresponding decoding device are disclosed for achieving a high rate of compression. The encoding device includes an image conversion module that converts the direction of the images using right-left symmetry mode convention or up-down symmetry mode conversion. Encoding modules are used to encode both the unconverted and converted images. A mode selector module compares the quantity of codes in the encoded unconverted images and the quantity of codes in the encoded converted images, and selects codes that are smaller in the quantity of codes for output.Type: GrantFiled: July 10, 2015Date of Patent: March 1, 2016Assignee: HITACHI MAXELL, LTD.Inventors: Tomokazu Murakami, Yoshinori Suzuki
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Patent number: 9277225Abstract: An image encoding device and corresponding decoding device are disclosed for achieving a high rate of compression. The encoding device includes an image conversion module that converts the direction of the images using right-left symmetry mode convention or up-down symmetry mode conversion. Encoding modules are used to encode both the unconverted and converted images. A mode selector module compares the quantity of codes in the encoded unconverted images and the quantity of codes in the encoded converted images, and selects codes that are smaller in the quantity of codes for output.Type: GrantFiled: July 10, 2015Date of Patent: March 1, 2016Assignee: HITACHI MAXELL, LTD.Inventors: Tomokazu Murakami, Yoshinori Suzuki
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Patent number: 9268525Abstract: A bit stream processing device may include a virtual division memory, a stream shift buffer, a decoder circuit, and a controller. The virtual division memory may be divided into a plurality of group memory regions configured to store a plurality of stream groups in the respective group memory regions and to output a memory bit stream. The stream groups may be included in an input bit stream. The stream shift buffer is configured to receive and store the memory bit stream and output a buffer bit stream. The decoder circuit is configured to perform a decoding operation on the buffer bit stream from the stream shift buffer. The controller is configured to control operations of the virtual division memory, the stream shift buffer, and the decoder circuit.Type: GrantFiled: September 3, 2013Date of Patent: February 23, 2016Assignee: Samsung Electronics Co., Ltd.Inventors: Kyung-Koo Lee, Jin-Hong Oh
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Patent number: 9268683Abstract: A memory circuit, such as an embedded DRAM array, stores information as groups of bits or data using information coding in storage and retrieval data, instead of each bit being stored separately. Write data words can be mapped to storage format words that are stored and defined by a Hadamard matrix. The storage format word is stored as charge levels in an addressable memory location. For retrieving stored data, charge levels are read from the storage cells and interpreted to a valid storage format word. Hadamard code maximal likelihood decoding can be used to derive a read data word corresponding to a previously written write data word. The write data word is then output as the result of a read of the selected addressable location, or a portion thereof. The mapping can be two or more Hadamard matrix mappings concatenated for each of a plurality of storage format words.Type: GrantFiled: March 15, 2013Date of Patent: February 23, 2016Assignee: KANDOU LABS, S.A.Inventors: Harm Cronie, Amin Shokrollahi
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Patent number: 9270998Abstract: An image encoding device and corresponding decoding device are disclosed for achieving a high rate of compression. The encoding device includes an image conversion module that converts the direction of the images using right-left symmetry mode convention or up-down symmetry mode conversion. Encoding modules are used to encode both the unconverted and converted images. A mode selector module compares the quantity of codes in the encoded unconverted images and the quantity of codes in the encoded converted images, and selects codes that are smaller in the quantity of codes for output.Type: GrantFiled: July 10, 2015Date of Patent: February 23, 2016Assignee: HITACHI MAXELL, LTD.Inventors: Tomokazu Murakami, Yoshinori Suzuki
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Patent number: 9087260Abstract: Systems and methods for quantizing a local descriptor in video fingerprinting applications are provided. In one or more embodiments, local features of a video are extracted and characterized by a set of feature dimensions. The feature dimensions are then quantized to yield a quantized local descriptor for the video. To introduce a degree of pseudorandom variation in the quantization grids, a cascaded random quantization technique is employed to quantize the dimensions, wherein a quantized value for a given dimension is used to quantize a next dimension in sequence.Type: GrantFiled: January 3, 2012Date of Patent: July 21, 2015Assignee: Google Inc.Inventor: Sergey Ioffe
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Patent number: 8928804Abstract: Disclosed are various embodiments directed to transcoding a bit stream in parallel. A bit stream may be divided into a plurality of segments, where a plurality of transcoders encode at least a portion of the segments in parallel. If encoding is performed using variable bit rate (BR) encoding, each encoder may encode a segment and vary a BR for the segment. A measured average BR is compared with a target average BR to determine whether to adjust a video quality level (VQL) or any other encoder parameter. A relatively constant subjective quality may be maintained using variable BR encoding while achieving a target average BR. When using constant BR encoding, a VQL or other encoder parameter is used by encoders to achieve relatively constant subjective quality. For example, a relatively continuous quantization parameter between adjacent encoded segments may be achieved.Type: GrantFiled: March 15, 2013Date of Patent: January 6, 2015Assignee: Broadcom CorporationInventors: Alexander Garland MacInnis, Hongtao Zhu, Jason William Herrick, Brian Francis Schoner, Junlin Li
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Patent number: 8897358Abstract: Methods for processing of video sequences that may contain telecined (3:2 pull down) frame sequences are provided. A method for detecting 3:2 pull down is provided that measures vertical detail in frames of a video sequence and uses the variation in vertical detail over time to decide whether the video sequence contains normal interlace content or 3:2 pull down content. A method for improving the compression of detected 3:2 pull down content is also provided that controls the selection of field or frame coding mode for frames of 3:2 pull down content and the selection of reference fields for encoding duplicated fields in the 3:2 pull down content.Type: GrantFiled: December 13, 2011Date of Patent: November 25, 2014Assignee: Texas Instruments IncorporatedInventors: Mudit Mehrotra, Soyeb N. Nagori
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Patent number: 8804825Abstract: A method for encoding pictures within a groups of pictures using prediction, where a first reference picture from a group of pictures and a second reference pictures from the subsequent group of pictures are used in predicting pictures in the group of pictures associated with the first reference picture. A plurality of anchor pictures in the group of pictures associated with the first reference picture may be predicted using both the first and second reference pictures to ensure a smooth transition between different groups of pictures within a video frame.Type: GrantFiled: January 11, 2006Date of Patent: August 12, 2014Assignee: Broadcom CorporationInventors: Ashish Koul, Douglas Chin
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Patent number: 8613013Abstract: In one embodiment an apparatus for splicing an ad into a data stream includes an ad segmenter, an ad variant generator coupled to the ad segmenter, and an ad variant selector coupled to the ad variant generator. The ad segmenter designates end portions, including beginning and ending portions, of the ad and designates an intermediate portion between the end portions. The ad variant generator generates a plurality of variants of at least one end portion. Each variant corresponds to a unique bit-rate. The ad variant selector selects at least one variant for splicing into the data stream based on a buffer level of a data stream buffer.Type: GrantFiled: June 12, 2008Date of Patent: December 17, 2013Assignee: Cisco Technology, Inc.Inventors: Glenn Connery, Andrew Palfreyman
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Patent number: 8601184Abstract: Various embodiments related to a host computing device for rendering and sending image data to a peripheral device for display at the peripheral device. For example, one embodiment comprises a host computing device, the host computing device comprising a data storage subsystem and a logic subsystem. The host computing device further comprises instructions stored in the data storage subsystem and executable by the logic subsystem to output to the peripheral device a frame of image data representing a difference between a currently rendered image and an (N?1)-th previously rendered image, N being an integer and having a value of 3 or more.Type: GrantFiled: December 26, 2012Date of Patent: December 3, 2013Assignee: Microsoft CorporationInventors: Eric Fleegal, Chris Whitman, Xianfeng Tian, Amar S. Vattakandy, Jim Belesiu, Robert D. Young
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Patent number: 8582657Abstract: Provided are an apparatus for multi-stage transforming a plurality of unit blocks in multi-dimension that can improve compression efficiency of video data by collecting Discrete Cosine Transforming (DCT) coefficients of neighboring blocks and performing an additional transformation based on the DCT coefficients of an original picture and a differential picture. The method includes the steps of: performing a Discrete Cosine Transform (DCT) on inputted picture data and selecting R blocks of a predetermined size from DCT picture data, where R is a natural number equal to or greater than 2; arranging DCT coefficients of each of the selected R blocks according to each frequency in one-dimension; and performing one-dimensional transformation again on the DCT coefficients arranged in one-dimension.Type: GrantFiled: February 22, 2007Date of Patent: November 12, 2013Assignee: Electronics and Telecommunications Research InstituteInventors: Se-Yoon Jeong, Hae-Chul Choi, Jeong-Il Seo, Seung-Kwon Beack, In-Seon Jang, Jae-Gon Kim, Kyung-Ae Moon, Dae-Young Jang, Jin-Woo Hong, Jin-Woong Kim, Chang-Beom Ahn, Seoung-Jun Oh, Dong-Gyu Sim, Ho-Chong Park, Yung-Lyul Lee, Su-Yeol Jeon
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Patent number: 8581981Abstract: An optical imaging system and associated methods for capturing images from an aircraft, such as a UAV. A camera unit on-board the aircraft is remotely controlled from an image control station. The image control station receives image data from the camera unit, and also delivers control signals for determining a viewing mode of the image.Type: GrantFiled: April 26, 2007Date of Patent: November 12, 2013Assignee: Southwest Research InstituteInventors: Kevin Alley, Roger Lopez, Richard Somers
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Patent number: 8364865Abstract: Various embodiments related to a host computing device for rendering and sending image data to a peripheral device for display at the peripheral device. For example, one embodiment comprises a host computing device, the host computing device comprising a data storage subsystem and a logic subsystem. The host computing device further comprises instructions stored in the data storage subsystem and executable by the logic subsystem to output to the peripheral device a frame of image data representing a difference between a currently rendered image and an (N?1)-th previously rendered image, N being an integer and having a value of 3 or more.Type: GrantFiled: September 28, 2010Date of Patent: January 29, 2013Assignee: Microsoft CorporationInventors: Eric Fleegal, Chris Whitman, Xianfeng Tian, Amar S. Vattakandy, Jim Belesiu, Robert D. Young
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Patent number: 8243821Abstract: A system (100) for encoding an input video frame (1005), for transmitting or storing the encoded video and for decoding the video is disclosed. The system (100) includes an encoder (1000) and a decoder (1200) interconnected through a storage or transmission medium (1100). The encoder (1000) includes a turbo encoder (1015) for forming parity bit data from the input frame (1005) into a first data source (1120), and a sampler (1020) for down-sampling the input frame (1202) to form a second data source (1110). The decoder (1200) receives data from the second data source (1110) to form an estimate for the frame (1005). The decoder (1200) also receivers the parity bit data from the first data source (1120), and corrects errors in the estimate by applying the parity bit data to the estimate. Each bit plane is corrected in turn. Bits in bit planes other than a bit plane presently being processed are also modified based in a selective manner.Type: GrantFiled: March 28, 2008Date of Patent: August 14, 2012Assignee: Canon Kabushiki KaishaInventor: Axel Lakus-Becker
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Patent number: 8116576Abstract: The present invention provides an image processing device which is able to reconstruct a high-resolution (HR) picture from low-resolution (LR) pictures, by modifying instability in the pictures due to movement of hands in capturing the images, and also by preventing increase of a circuit size and processing amounts required for motion estimation between the pictures. In the image processing device, a motion estimation unit reads the LR pictures from a memory, and estimates respective motion vectors between the pictures. A stabilization parameter calculation unit calculates a stabilized global motion parameter based on the motion vector. A motion vector compensation unit stabilizes the motion vectors calculated by the motion estimation unit, using the stabilized global motion parameter. A picture integration unit combines (integrates) a target picture and reference pictures with sub-pixel precision, using the stabilized motion vectors.Type: GrantFiled: March 2, 2007Date of Patent: February 14, 2012Assignee: Panasonic CorporationInventor: Satoshi Kondo
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Patent number: 8045816Abstract: An image quantization method and apparatus are provided in which a block with a high possibility of having color distortion is more elaborately quantized using a predetermined color distortion removing quantization matrix. The image quantization method includes determining a possibility of color distortion in the block using discrete cosine transform (DCT) coefficients and pixel values of the block of predetermined size of an image and performing initial quantization on the block using a predetermined color distortion quantization matrix to remove color distortion if the block has a high possibility of color distortion.Type: GrantFiled: August 7, 2007Date of Patent: October 25, 2011Assignee: Samsung Electronics Co., Ltd.Inventors: Mi-yeon Lee, Bo-gun Park
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Patent number: 7966633Abstract: A method for receiving a broadcasting signal and a broadcasting signal receiver are disclosed. Even when a cell is changed while an emergency alert is output, the emergency alert can be continuously output using emergency alert table information included in the broadcasting signal and channel information of the cell. The emergency alert table information may include a cell identifier and the channel information of the cell may include virtual channel information of the cell.Type: GrantFiled: March 19, 2010Date of Patent: June 21, 2011Assignee: LG Electronics Inc.Inventors: Chang Sik Yun, In Hwan Choi, Kook Yeon Kwak, Hyoung Gon Lee, Won Gyu Song, Jin Pil Kim, Jong Moon Kim, Jin Woo Kim, Byoung Gill Kim